Selective aqueous extraction of organics coupled with trapping by membrane separation
US5041227A · kind A · utility
23Cited by
3References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 9, 1990 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Oct 9, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12P41/007
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improvement to processes for the selective extractation of organic solutes from organic solvents by water-based extractants is disclosed, the improvement comprising coupling various membrane separation processes with the organic extraction process, the membrane separation process being utilized to continuously recycle the water-based extractant and at the same time selectively remove or concentrate organic solute from the water-based extractant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.